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Fix Android native buttons emitting 2 press events when talkbalk is enabled #3002

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merged 6 commits into from
Jul 24, 2024
Merged

Fix Android native buttons emitting 2 press events when talkbalk is enabled #3002

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419da0e
add fix for 2808
latekvo Jul 23, 2024
da99bc7
reformat long line over 3 lines
latekvo Jul 23, 2024
33e9f72
rewrite comment for clarity
latekvo Jul 23, 2024
3c556f5
reformat code
latekvo Jul 23, 2024
f73d8fe
improve double press avoidance, shorten screen reader check
latekvo Jul 24, 2024
8b80a98
update comment to reflect recent changes
latekvo Jul 24, 2024
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16 changes: 16 additions & 0 deletions android/src/main/java/com/swmansion/gesturehandler/core/NativeViewGestureHandler.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@ import android.widget.ScrollView
import com.facebook.react.views.scroll.ReactScrollView
import com.facebook.react.views.swiperefresh.ReactSwipeRefreshLayout
import com.facebook.react.views.textinput.ReactEditText
import com.swmansion.gesturehandler.react.RNGestureHandlerButtonViewManager
import com.swmansion.gesturehandler.react.isScreenReaderOn

class NativeViewGestureHandler : GestureHandler<NativeViewGestureHandler>() {
private var shouldActivateOnStart = false
Expand Down Expand Up @@ -82,6 +84,17 @@ class NativeViewGestureHandler : GestureHandler<NativeViewGestureHandler>() {

override fun onHandle(event: MotionEvent, sourceEvent: MotionEvent) {
val view = view!!

val isTouchExplorationEnabled = view.context.isScreenReaderOn()

if (view is RNGestureHandlerButtonViewManager.ButtonViewGroup && isTouchExplorationEnabled) {
// Fix for: https://github.com/software-mansion/react-native-gesture-handler/issues/2808
// When TalkBack is enabled, events are often not being sent to the orchestrator for processing.
// Instead, states will be changed directly by an alternative mechanism added in this PR:
// https://github.com/software-mansion/react-native-gesture-handler/pull/2234
return
}

if (event.actionMasked == MotionEvent.ACTION_UP) {
if (state == STATE_UNDETERMINED && !hook.canBegin(event)) {
cancel()
Expand All @@ -106,13 +119,16 @@ class NativeViewGestureHandler : GestureHandler<NativeViewGestureHandler>() {
view.onTouchEvent(event)
activate()
}

tryIntercept(view, event) -> {
view.onTouchEvent(event)
activate()
}

hook.wantsToHandleEventBeforeActivation() -> {
hook.handleEventBeforeActivation(event)
}

state != STATE_BEGAN -> {
if (hook.canBegin(event)) {
begin()
Expand Down
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